Bart Ehrman, a New Testament scholar who rejects most of the New Testament, is, ironically enough, a graduate of both Moody and Wheaton. He is also the go-to guy for the media when they are looking for a "Christian" to bash Christianity. Ehrman's books sell well and many nice church-going folks have seen their faith devestated by his arguments. Now, a helpful website has been established to answer Ehrman's charges.
Also, if you would like to go deeper, check out the outstanding The Heresy of Orthodoxy which dismantles Ehrman's foundational assumptions.